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CROSSTALK (Crosstalk between the tracks)
(TAPE)
Tape direction
2 Tape direction
As shown in the figure, first record a 1,000 Hz sine wave
on
track
No.3
at +3
VU
level.
Next,
remove
the
1,000 Hz input signal and record under a non-input
condition. Then, Playback the tape on track No.3 and
No. 1 (reversed condition of tape) through the 1,000 Hz
B.P.F.
(Band Pass
Filter, Sensitivity....
1:1)
and
obtain
a ratio between
the two
from
the following
formula.
Eo
C = 20 log ——*—
(db
eee
Bi
(db)
C = Desired crosstalk ratio (db)
Ls 2]
Eo = 1,000 Hz signal output level
CLZLZZZ2
E2 = 1,000 Hz crosstalk output level
RES
Ei = Non-input signal record level
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